Viewing archive of Thursday, 22 September 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Sep 22 1231 UTC

SIDC Forecast

Solar flares

C-class flares expected, (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
22 Sep 2016	083	006
23 Sep 2016	080	007
24 Sep 2016	080	007

Bulletin

Solar activity was low. Beta region NOAA AR 2595 produced a C5.6 flare with peak time 05:47 UT on September 22. Low solar activity (C flaring) is expected in the next 24 hours. Solar wind speed measured by DSCOVR gradually decreased further from about 550 to about 465 km/s in the wake of a coronal hole high speed stream. Meanwhile the magnitude of the Interplanetary Magnetic Field varied beween about 2 and 7 nT. Quiet geomagnetic conditions (K Dourbes between 1 and 2, NOAA Kp between 0 and 2) were registered in the past 24 hours. Quiet to unsettled levels are expected on September 22, 23 and 24.

Today's estimated international sunspot number (ISN): 033, based on 19 stations.

Solar indices for 21 Sep 2016

Wolf number Catania	///
10cm solar flux	086
AK Chambon La Forêt	011
AK Wingst	010
Estimated Ap	010
Estimated international sunspot number	051 - Based on 26 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

All times in UTC

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